Series Intelligence
The War Between the Land and the Sea
Leak Intelligence
No WEB detection recorded
Watch Leaks has not recorded a first WEB detection for this series. This does not establish whether copies exist elsewhere.
Status
Ended
Network
BBC One
Audience Rating
7.6 / 10
Rating Votes
205
Origin
GB
Last Air Date
Dec 21, 2025
Production
Not In Production
Current Season
Season 1
Next scheduled episode
No next air date confirmed
Series overview and metadata
When a fearsome and ancient species emerges from the ocean, dramatically revealing themselves to humanity, an international crisis is triggered. With the entire population at risk, UNIT step into action as the land and sea wage war.
- First aired
- Dec 7, 2025
- Status
- Ended
- Network
- BBC One
- Seasons
- 1
Episode Intelligence
Season 1 Episode Timeline
5 episodes
Episode Intelligence
Season 1 Episode Timeline
S01E01Homo AquaDec 7, 2025
Runtime: 44m
Rating: 6.3 / 10
Barclay's ordinary life becomes a world of terror when an ancient species rises from the sea. As UNIT fights for control, the summit on the Thames reveals terrifying secrets.
S01E02Plastic ApocalypseDec 7, 2025
Runtime: 48m
Rating: 6.3 / 10
Barclay becomes humanity's ambassador when the mysterious Salt emerges from the Tank. But his family's life is torn apart when Salt wreaks revenge upon all mankind.
S01E03The DeepDec 14, 2025
Runtime: 45m
Rating: 5.8 / 10
Barclay makes a terrifying descent into the world of Homo Aqua. Back on the land, Kate stands alone as Downing Street conspires with the army to change the course of the war.
S01E04The Witch of the WaterfallDec 14, 2025
Runtime: 46m
Rating: 5.4 / 10
Barclay and Salt go on the run in a war-torn London as UNIT reels from disaster. But when Tide threatens the land and Gunsberg advances his plans, the Severance schemes demand blood.
S01E05The End of the WarDec 21, 2025
Runtime: 54m
Rating: 5.1 / 10
Event: Season Finale
Barclay stands alone, Salt is lost, UNIT is powerless, and the oceans rise as the war reaches its climax. While traitors conspire, can Barclay find Salt before it's too late?
Cast & creators
Release Intelligence
Episode Status
Most recently aired and next scheduled episodes.
Last Episode
Air Date
Dec 21, 2025
The End of the War
Runtime
54m
Audience Rating
5.1 / 10
Votes
22
Barclay stands alone, Salt is lost, UNIT is powerless, and the oceans rise as the war reaches its climax. While traitors conspire, can Barclay find Salt before it's too late?
Next Episode
No episode information is currently available.
Full series release history
Season history
Season 1Latest
Dec 7, 2025 · 5 episodes
Full series release history
Season history
Season 1Latest
Dec 7, 2025 · 5 episodes